Data/hora: 19/06/2024 02:38:08

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 03/10/2017
Data da última atualização: | 14/04/2021
Autoria: | SILVA, U. C.; MEDEIROS, J. D.; LEITE, L. R.; MORAIS, D. K.; CUADROS-ORELLANA, S.; OLIVEIRA-PAIVA, C. A.; LANA, U. G. de P.; GOMES, E. A.; SANTOS, V. L. dos.
Afiliação: | UBIANA C. SILVA, Universidade Federal de Minas Gerais; JULLIANE D. MEDEIROS, Fiocruz; LAURA R. LEITE, Fiocruz; DANIEL K. MORAIS, Fiocruz; SARA CUADROS-ORELLANA, Universidad Católica del Maule, Talca, Chile; CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS; UBIRACI GOMES DE PAULA LANA, CNPMS; ELIANE APARECIDA GOMES, CNPMS; VERA L. DOS SANTOS, Universidade Federal de Minas Gerais.
Título: | Long-term rock phosphate fertilization impacts the microbial communities of maize rhizosphere.
Ano de publicação: | 2017
Fonte/Imprenta: | Frontiers in Microbiology, Lausanne, v. 8, p. 1-11, 2017.
DOI: | doi.org/10.3389/fmicb.2017.01266
Idioma: | Inglês
Notas: | Article 1266.
Conteúdo: | Phosphate fertilization is a common practice in agriculture worldwide, and several commercial products are widely used. Triple superphosphate (TSP) is an excellent soluble phosphorus (P) source. However, its high cost of production makes the longterm use of crude rock phosphate (RP) a more attractive alternative in developing countries, albeit its influence on plant-associated microbiota remains unclear. Here, we compared long-term effects of TSP and RP fertilization on the structure of maize rhizosphere microbial community using next generation sequencing. Proteobacteria were dominant in all conditions, whereas Oxalobacteraceae (mainly Massilia and Herbaspirillum) was enriched in the RP-amended soil. Klebsiella was the second most abundant taxon in the RP-treated soil. Burkholderia sp. and Bacillus sp. were enriched in the RP-amended soil when compared to the TSP-treated soil. Regarding fungi, Glomeromycota showed highest abundance in RP-amended soils, and the main genera were Scutellospora and Racocetra. These taxa are already described as important for P solubilization/acquisition in RP-fertilized soil. Maize grown on TSP and RP-treated soil presented similar productivity, and a positive correlation was detected for P content and the microbial community of the soils. The results suggest changes of the microbial community composition associated to the type of phosphate fertilization. Whilst it is not possible to establish causality relations, our data highlights a few candidate taxa that could be involved in RP solubilization and plant growth promotion. Moreover, this can represent a shorter path for further studies aiming the isolation and validation of the taxa described here concerning P release on the soil plant system and their use as bioinoculants.
Palavras-Chave: | Comunidade microbiana.
Thesagro: | Fosfato de rocha; Rizosfera.
Categoria do assunto: | S Ciências Biológicas
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/164606/1/Long-term.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (27872-1) - UPC - AP - DD -  -  -  - DIS